1. Morphology of the “spindle-shaped body” in the developing tail of human spermatids

   • Hubert Wartenberg
   • Adolf-Friedrich Holstein

   OriginalPaper Pages: 435 - 443

2. Ultrastructure of nematocytes and one-celled tentacles of the freshwater coelenterate, Calpasoma dactyloptera

   • Richard D. Campbell
   • Menachem Rahat

   OriginalPaper Pages: 445 - 457

3. Structure of the toad epidermis during the moulting cycle

   • Povl E. Budtz
   • Lis Olesen Larsen

   OriginalPaper Pages: 459 - 483

4. Ultrastructural study of the neural fat-body system in the cockroach Periplaneta americana

   • P. J. Gardner
   • D. J. Weidler

   OriginalPaper Pages: 485 - 491

5. Aminergic nuclei in the hypothalamus of the roach Leuciscus rutilus

   • Bo Ekengren

   OriginalPaper Pages: 493 - 502

6. Cell differentiation during early development of Nassarius reticulatus L. (Gastropoda Prosobranchia)

   • L. Schmekel
   • P. Pioroni

   OriginalPaper Pages: 503 - 522

7. The ultrastructure of topical cutaneous calcinosis

   • A. Plačková
   • J. Vahl

   OriginalPaper Pages: 523 - 529

8. Histochemical, ultrastructural and hormonal studies on the pars distalis of the echidna (Tachyglossus aculeatus)

   • G. Fink
   • G. C. Smith
   • M. L. Augee

   OriginalPaper Pages: 531 - 540

9. Ultrastructure of the Budgerigar testis during a photoperiodically induced cycle

   • P. N. Humphreys

   OriginalPaper Pages: 541 - 550

10. Morphology of the perivascular regions of the rat neural lobe in relation to hormone release

    • A. Livingston

    OriginalPaper Pages: 551 - 561